JPH01168944A - High-speed controller in circular knitting machine - Google Patents

Abstract

PURPOSE:To provide the title controller so designed that registers capable of committing to memory of the data specifying colors when knitted corresponding to respective yarn delivery ports in a circular knitting machine to eliminate the requirement for data processing for each yarn delivery port with one needle pulse activation signal, thus leading to shortening the data processing time. CONSTITUTION:Instead of the color-assigning register CR in the interface (I/F-2) 17 of a controller, a form-developing memory DM capable of committing to memory of form data a, b, c, etc., when knitted, a yarn delivery port address register SAR capable of committing to memory, corresponding to respective yarn delivery ports, of the leading addresses A, B, C,... of said memory DM, and a delivery yarn color-assigning register SCR capable of committing to memory of the data specifying the colors when knitted corresponding to respective yarn delivery ports.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a high-speed control device for a circular knitting machine for knitting knitted fabrics at high speed.

(Prior art) Fig. 3 (8) is a plan view showing an example of a circular knitting machine, and Fig. 3 (B) is a plan view showing an example of a circular knitting machine.
) is a side view of the same, showing a plurality of cylinder needles 2 arranged parallel to the axis of the hook 1 on the circumference of the cylindrical hook 1, and corresponding to each cylinder needle 2 radially from the axis of the hook 1. A plurality of dial needles 3 are arranged as shown in FIG.
It has

FIG. 4 is a block diagram showing an example of a control device in the above-mentioned circular knitting machine.
Interface to be displayed on T12 (1/F-0)
13, an interface (17F-1) that reads and outputs the command SB from the keyboard 14, and a color assignment register CR. /Interface that outputs the signal SD for turning off (1
/F-2) Exchanges the on/off signal SE with the panel SW/lamp 17, inputs the reference needle pulse signal SF via the microprocessor 18, and also sends a signal for turning the pulse motor on/off. It consists of an interface (I/F-3) 19 that outputs SG, and a memo 9 (RAM) 20 that stores various programs.

In such a configuration, the interface (1/F-
'2) To explain the operation in 17 with reference to Fig. 5, the content of the color assignment register CR for the number of colors (for example, "I") is compared with the pattern data D created at the timing of the needle pulse SC. part JM, and if “I°” and “D” match, output an on symbol to the magnet coil,
If "I°" and "0" do not match, an off signal is output to the magnet coil.

(Problems to be Solved by the Invention) The control device for the above-mentioned circular knitting machine mainly controls the vertical movement of each cylinder needle 2 at a specific position (Fig. 6(A), (
In the basic operation of the cylinder needle 2 shown in B), (^) the knit state corresponds to an upward movement, and (B) the welt state corresponds to a downward movement). By rotating the hook 1 holding the cylinder needle 2 in one direction, the 1
A needle pulse SC corresponding to one cylinder needle 2 is generated with a period T1 according to its rotation speed. On the other hand, the position where the cylinder needle 2 is controlled up and down coincides with the yarn feeder 6,
fixed on the circumference. Since all the yarn feeders 6 are operable when one specific needle pulse SC is generated, it is necessary to control all the yarn feeders 6 at most. Therefore, the yarn feeder 6
As the number increases, the data processing time T shown in FIG. 7 increases, making it impossible to process within the period T of the needle pulse SC. Therefore, there was a problem in that the number of rotations of the hook 1 had to be lowered in order to lengthen the period T1 of the needle pulse SC.

The present invention was made in view of the above-mentioned circumstances, and the object of the invention is to provide a high-speed control device for a circular knitting machine that can process data in a short time even when the number of yarn feeders increases. It is about providing.

(Means for Solving the Problems) The present invention relates to a high-speed control device for a circular knitting machine for knitting knitted fabrics at high speed, and the above-mentioned objects of the present invention include:
a first storage means (for example, a memory) that stores pattern data for knitting in advance; a second storage means (for example, a register) that stores addresses of the first storage means for each yarn feeder; and each of the yarn feeders. a third storage means (for example, a register) for storing a date specifying a knitting color corresponding to the knitting color;
Comparing and determining the contents of the first storage means and the contents of the third storage means indicated by the first address of the second storage means by one needle pulse activation signal, and determining whether these contents match. This is achieved by repeating the operation of setting an on signal if the two match, and setting an off signal if they do not match, a preset number of times.

(Function) The high-speed control device for the circular knitting machine of the present invention is equipped with a register that stores data specifying the knitting color for each yarn feed 0 minute. This eliminates the need for data processing, and furthermore, by shortening the data processing time, it is possible to increase the number of rotations of the pot.

(Embodiment) FIG. 1 is a diagram showing the data flow in an example of the main part of the high-speed control device in the circular knitting machine of the present invention, and shows the data flow in the interface (1/F-2) 17 of the conventional control device. Knitting pattern data a instead of color assignment register CR
, b, c, . . . , a pattern expansion memory DM that stores in advance;
The starting address of this pattern development memory OM is 8, II, C, .
Yarn feed lower address register SA that stores ... for each yarn feeder
R, and a yarn feeder color assignment register SCR for storing data specifying the knitting color corresponding to each yarn feeder.

In such a configuration, an example of its operation will be explained with reference to the flowchart of FIG. 2. In step Sl, the first address A of the yarn feeding lower address register SAn is loaded by one needle pulse activation signal SC.

S2), the first content a of the yarn feeder color assignment register SCn is loaded (step S3), and the content a of the pattern development memory DM indicated by the first address A is loaded (step S54). Then, each data “a” and “
The determination unit JM checks whether the data "a" and "a" match (Step S5). If the data "a" and "a" match, the ON signal for the basic knitting operation is set (step S5). Step 56).

On the other hand, in the judgment step S5, each data
If "a" and "a" do not match, an off signal for the basic knitting operation is set (step S7). Then, the first content A of the yarn feeding lower address register SAH is set to “+
1'' (step S8, 59), check whether the predetermined number N has been reached (step 510), and if the predetermined number N has not been reached, return to step S2 and perform the above-mentioned operation. Repeatedly, when a predetermined number N is reached, the process is completed.

Furthermore, similar processing is performed for the next needle pulse activation signal SC. For example, there are 3 colors (red, white,
If the pattern of blue) is stored in advance in the yarn feeder color assignment register SCH, the first yarn feeder will feed the red type (°°I'' is red information), and the second yarn feeder will feed the white yarn ( "0" is white information) is fed, and the third thread feeder feeds fruits and vegetables ("8"
is blue information), and the fourth yarn feeder feeds red yarn again, and so on, and so on. In this way, color information is specified only for valid yarn feeders in advance, so
The three-color pattern stored in the pattern development memory DM can be knitted using the on/off signal sD in the determining section JM.

(Effects of the Invention) As described above, according to the high-speed control device for the circular knitting machine of the present invention, data processing can be performed in a short time, so even if the number of yarn feeders increases, knitting can be performed at high speed. By doing so, it is possible to significantly improve productivity.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing the flow of data in an example of the main part of the high-speed control device in the circular knitting machine of the present invention, Fig. 2 is a flowchart explaining an example of its operation, and Figs. 3 (^) and (
B) shows an example of a circular knitting machine. A top view and a side view, FIG. 4 is a diagram showing an example of a control device in a circular knitting machine, FIG. 5 is a diagram showing a data flow in an example of the main part of a control device in a conventional circular knitting machine, and FIG. 6 (
A) and (B) are perspective views showing the basic operation of the needle, and FIG. 7 is a time chart showing the relationship between needle pulses and data processing. 2... Cylinder needle, 3... Dial needle, 6... Yarn feeder, 17... Interface (1/F-2),
DM... Pattern development memory, S to B... Yarn feeder lower address register, SCR... Yarn feeder color assignment register. Applicant's agent Yuzo Yasugata Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] A control device of a circular knitting machine that performs knitting includes a first storage means for storing pattern data for the knitting in advance, and a second storage means for storing addresses of the first storage means for each yarn feeder. , and a third storage means for storing data specifying a knitting color corresponding to each yarn feeder, and one needle pulse starting signal indicates the first address of the second storage means. The content of the first storage means and the content of the third storage means are compared and determined, and if these contents match, an on signal is set, and if they do not match, an off signal is set. A high-speed control device for a circular knitting machine characterized by repeating a preset number of times.